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    • 1. 发明公开
    • PREPARATION OF NOVEL SUBSTITUTED HALOARENE COMPOUNDS
    • 新型取代的卤代烯烃化合物的制备
    • EP1771419A1
    • 2007-04-11
    • EP05759742.9
    • 2005-07-07
    • Pfizer Products Inc.
    • RUTHERFORD, Jennifer LeaHAWKINS, Joel Michael
    • C07D213/61C07C25/02C07C2/00
    • C07C29/40C07C2601/08C07C2601/14C07D213/61C07C33/46C07C33/44C07C31/125
    • This invention relates to a new process for the preparation of novel substituted haloarene compounds of the formula I or IV: respectively, wherein R1, R2, R3, R4, R5, X, and Y are as defined herein, that comprises a novel and efficient selective mono-lithiation of a dihaloarene of the formula II or V: respectively, by an organo-lithium compound in the presence of a carbonyl reactant of the formula III: wherein R1 and R2 are as defined herein. In the process of the instant invention, the newly formed lithiated haloarene is sequentially quenched in situ by the carbonyl reactant to form said substituted haloarene. The process is suitable for batch or continuous flow systems. The substituted haloarenes produced by the process of the present invention are useful intermediates in the preparation of N-aryl or N-heteroaryl substituted pharmaceutically active compounds that include selective antagonists, inverse agonists and partial agonists of serotonin 1 (5-HT1) receptors useful in treating or preventing depression, anxiety, obsessive compulsive disorder (OCD) and other disorders for which a 5-HT1 agonist or antagonist is indicated.
    • 本发明涉及分别制备式I或IV的新型取代卤代芳烃化合物的新方法,其中R 1,R 2,R 3,R 4,R 5,X和Y如本文所定义,其包含新颖且有效 在式III的羰基反应物存在下,通过有机锂化合物分别选择性地将式II或V的二卤芳烃单锂化:其中R 1和R 2如本文所定义。 在本发明的方法中,新形成的锂化卤代芳烃通过羰基反应物原位依次猝灭以形成所述取代的卤代芳烃。 该工艺适用于批量或连续流动系统。 由本发明方法制备的取代卤代芳烃是制备N-芳基或N-杂芳基取代的药物活性化合物的有用中间体,其包括选择性拮抗剂,反向激动剂和血清素1(5-HT1)受体的部分激动剂,其可用于 治疗或预防抑郁症,焦虑症,强迫症(OCD)和表明5-HT1激动剂或拮抗剂的其它疾病。